Finding the Third Proportional to 40,248 and 87,810

Step by Step Solution

1. Step 1: Write the proportion equation
   40,248 : 87,810 = 87,810 : x
2. Step 2: Convert to fraction form
   40,248/87,810 = 87,810/x
3. Step 3: Cross multiply
   40,248x = 87,810 × 87,810
4. Step 4: Simplify right side
   40,248x = 7,710,596,100
5. Step 5: Solve for x
   x = 7,710,596,100/40,248
6. Step 6: Final answer
   x = 191,577.12